An Iranian man who came to Maine as a refugee in 2009 became radicalized in his Islamic faith while living here and was fighting for the Islamic State when he was killed last year in Lebanon, according to newly unsealed federal court documents.

Adnan Fazeli, 38, most recently of Freeport, came under investigation by the FBI for his connection to the terrorist group shortly after he left his job at Dubai Auto in Portland to fly to Turkey on Aug. 13, 2013, and never returned.

Fazeli, who also went by the names Abu Nawaf and Abu Abdullah Al-Ahwazi, was killed on Jan. 23, 2015, in a battle near Ras Baalbek in Lebanon as part of an Islamic State attack force of about 150 that was thwarted by the Lebanese army.

Those details, which were never revealed publicly before, were contained in an affidavit filed in U.S. District Court in Portland last Oct. 27 by Maine State Police Detective George Loder, who was acting as a member of an FBI task force investigating whether other people were aware of Fazeli’s plans to fight for the Islamic State, helped him travel to the Iraq-Syria-Lebanon area or supported his efforts there. The affidavit remained under seal during the investigation, which ended with no criminal charges.

Why do we need to bring more Muslim refugees here? How does that help Americans?